Corrosion of third degree of left axilla, initial encounter

This code signifies a severe, full-thickness injury to the left armpit area, extending through all layers of skin and potentially into underlying tissue. Such an injury typically presents with charring, a leathery appearance, or waxy white skin, and is often painless due to nerve damage. It is considered an initial encounter, meaning the patient is receiving active treatment for this specific burn.

Apply this code when documenting the initial treatment of a patient presenting with a third-degree chemical burn or other corrosive injury affecting the left axilla. This includes situations requiring immediate medical intervention such as debridement, skin grafting, or extensive wound care. It is appropriate for the first visit related to this specific injury.

• Ensure documentation clearly specifies "third degree" and "left axilla" for accurate code assignment.
• Verify the encounter is indeed the "initial encounter" for this specific injury; subsequent care would use a different seventh character.
• Always code the external cause of the corrosion (e.g., chemical exposure) with an external cause code (V00-Y99) in addition to this diagnosis code.